《Tetrabiblos》That Prescience Is UsefulClaudius Ptolemy（Ashmand 英譯 1822）
They also watch the significations of the fixed stars, to avoid dangerous weather, in making voyages by sea; and they notice the aspects of the Moon, when at the full, in order to direct the copulation of their herds and flocks, and the setting of plants or sewing of seeds: and there is not an individual who considers these general precautions as impossible or unprofitable.
段落 tetra-1-thatpresci-35public-domain (Ashmand 1822)
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